Valve grinder



A. WERNER VALVE GRINDER May 2, 1933.

Filed April 9, 1952 Patented May 2, 1933 i UNITED stares ADOLPH.WERNER,OF MILWAUKEE, WISCONSIN VALVE GRINDER Application filed April 9, 1932.'SerialNo. 604,320.

My invention refers to valvegrinders, and has for its object to providea simple, durable valve grinder, embodying a journalled v stem having anabrasive head, the device heing readily inserted into the housing,centered and secured with relation to the valve seat, to thus insuretrue and uniform grinding of said valve seat throughout itscircumference. A specific object of my inventionis to provide a conicalcap having a journal therein for a rotary stem, carrying anabrasivehead, together with some means associated with the cap forsecuring the same to the valve seat housing, and for alining it withsaid valve seat.

Another object is to provide a conical journal cap and associated parts,with means for centering the same with relation to a valve seat, theconical cap being. adapted to fit various sized valve housings.

Another object of my invention is to provide a cushioned abrasive headunit which can be renewed, and which also is capable of '25interchangeability for various sized valve seats.

WVith the above and other minor objects in view, the invention consistsin certain peculiarities of construction and combination of parts, aswill be hereinafter set forth with reference to the accompanying drawingand subsequently claimed.

In the drawing Figure 1 represents a fragmentary sectional elevation ofa valve grinding mechanism embodying the features of my invention, thesame being shown adjusted to a valve housing of any standard type.

Figure 2 is an inverted plan view of the valve grinder head and conicaljournal cap associated therewith.

Figure 3 is a detailed plan view illustrating one means of adjustablyclamping the grinder to the dome portion of a valve housing.

Figure 4; illustrates a detailed partly sectional elevation of a grinderhead, wherein an abrasive pad is attached by a binding screw.

Figure 5 is a plan View illustrating the abrasive head, and i I Figure 6is a detailed sectional, elevation of still another form of abrasivehead, wherein a rubber disc or cushion is employed in connection with adisc of abrasive material.

Referring-by characters to the drawing, A represents a standard valve orfaucet housing, provided with the usual discharge nozzle B and an intakeneck C, said housing also being provided with the usual openmouthed domeE, which isscrew-threaded for the reception of a gland and itsassociated valve parts, the same, in this instance, being removed forthe reception of a stepped, '5? conical cap 1, which cap is bored toform a journal 2 for a grinding spindle 3.

The grindingspindle 3 is provided with a handle 4 in thisexemplification of my invention, but it is understood that this handlemay be dispensed with and the end of the spindle provided with polygonalsides for the reception of a hand bit,-or other means, for rotating thespindle. I Theconical; stepped cap is provided with slotted wings 5 forthe reception of clamping screws 6, which pass therethrough, and receiveknurled binding nuts 7. .The-lower ends of the clamping screws 6 arepivotally-monnted upon hand screws 8, as best shown in Figure. 3, thehand screws, together with binding nuts 9, engaging cars 10 of companionpairs of, clips 11'11, which clips encompass :the bottom portion of thevalve housing, as best shown in Figure 1., 1 v

Thus it will be seenthat the valve grinding mechanism can readily beadjusted to the valve housing by first firmly gripping the clips, 11about its dome, and thereafter the spindles 3, together with itsgrinding'head 12', are inserted in the open threaded mouth of the dome,as shown. Thehead is then positively centered or alined with the housingvalve seat F, due to thefact that one of itsstepped surfaces will seatand shoulder within the domeopening to insure alinement of the parts.The clamping-screws are then swung into position, as shown in Figurel,causing their upper ends to enterthe-slots of the wings in said cap, andthereafter the binding screws 77 are turned down to rigidly secure theparts to the valve housing, it being understood that the spindle 3 isthen in perfect alinement with said housing.

As shown in Figures 1 and 2 of the drawing, the head 12 is provided withrightangle kerfs or radial slots 1313, the slots 13 being of a finergrade, whereby an abrasive paper pad of relatively fine material may befitted therein, or, in the event that coarser material is required, theends of the abrasive strip or pad are fitted into the slots 13. As bestshown, for example, in Figure 1 of the drawing, the abrasive material 11 is folded upon itself to form a double grinding pad that approximatesthe diameter of the head, and the ends 15 of said abrasive material arethen inserted into the slot 13. This abrasive pad can then be secured bya binding screw 16, or, in some instances, it may be secured, as shownin Figure 1 of the drawing, by a binding cord 17, which enters a slot 18formed in the head and thus securely confines the ends 15 of theabrasive strip. This form of vpad is particularly desirable, due to itsinterchangeability, whereby coarse or line sandpaper, or the like, maybe utilized for grinding. It is understood, however, that any type ofabrasive material may be used, as, for example, in Figure '5 of thedrawing 1 have shown the head 12 centrally bored and threaded for the;reception of a screw 19, which screw confines a yielding cushion disc20, which may be of rubber, or other suitable material, and fitted overthis disc, and also confined by the screw, is a thin abrasive strip 21formed from sand paper or emery cloth.

It will benoted that the conical cap 1 may be provided with three ormore slots, five in some instances, whereby the bolts or screws 6 may beradially adjusted in these slots 7 to contact with the exterior wall ofthe dome E, whereby the cap 1 is not only centered interiorly butexteriorly with relation to the valve casing.

It is also obvious that I may in some cases use an ordinaryabrasive-grinding disc in place of the abrasive pads previouslydescribed, but it is understood that the most advantageous efiects areproduced, wherein a yielding or cushioned abrasive unit is employed.

From the foregoing description, it is obvious that it does not require askilled mechanic to face or regrind valve discs with my apparatus, as itcan be quickly inserted and centered in any valve housing and rotated toproduce the desired grinding of a worn or pitted valve seat. In practicethe apparatus is provided with a plurality of heads of differentdiameters to conform to the various dimensions of faucets or valves ofstandard types.

Particular attention is directed to the fact that the spindle is fixedlyjournalled in the conical cap so as to facilitate alinement and perfectgrinding of the seat.

I claim A valve seat grinder for water faucets comprising a pair ofopposed clamping jaws terminating in parallel ears, said jaws beingadapted to engage the opposite sides of a valve housing, binding screwsextending through said parallel ears for drawing the jaws toward oneanother, clamping bolts rockably mounted on the screws between saidparallel ears and movable at right angles to said ears or paralleltherewith, a guide head having an-exteriorly stepped face arranged abovethe clamping jaws, diametrically opposed pairs of ears formed on saidhead and arranged above the parallel ears for the reception of saidbolts, when the same are disposed at right angles to the parallel ears,a stem slidably and rotatably mounted in said guide head, a grinder headupon one end of the same, and a manipulating handle upon the other endof said stem. a 1

In testimony that I claim the foregoing I have hereunto set my hand atMilwaukee, in the county of Milwaukee and State of Wisconsin.

ADOLPH WERNER.

